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Surveillance and analysis on the pathogenic feature of Salmonella from infectious diarrheal patients in Guiyang,China,2013-2014 |
YOU LYU1, HE Xun-mian2, WEI Xiao-yu1, LI Shi-jun1, WANG Bin1, HUANG He1, TANG Guang-peng1, ZHU Lin3, WANG Ding-ming1 |
1. Guizhou Provincial Center for Disease Control and Prevention, Guiyang 550004, China; 2. Sandu County Center for Disease Control and Prevention, Qannan 558100, China; 3. Zunyi Center for Disease Control and Prevention, Zunyi 563000, China |
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Abstract We studied the serovars and PFGE types of Salmonella in patients with infectious diarrhea from 2013 to 2014, in order to provide scientific basis for the prevention and control of salmonellosis in Guiyang City. A total of 432 samples of stool specimens of diarrheal patients from 4 sentinel hospitals were collected to isolate Salmonella strains. The isolated Salmonella strains were further analyzed via serotypes and PFGE pattern. The positive rate of the surveillance Salmonella in Guiyang was 8.1%(35/432). The ratio of male and female was 1.5∶1. Salmonella infection was most in 0~5 years old. The positive rate was 8.91%.The difference of isolated rates of Salmonella was not statistically significant (P=0.052) in the four seasons. Nine serovars were identified in the 35 isolates. The most prevalent were Salmonella enteritidis and Salmonella typhimurium, account for 31.43% and 25.71% respectively. Eleven strains of Salmonella enteritidis were divided into 8 PFGE types, 9 strains of Samonella typhimurium were divided into 9 PFGE types, showed great genetic diversity. Results showed Salmonella enteritidis and Salmonella typhimurium were the dominant serotypes causing infectious diarrhea in Guiyang City. The PFGE types were great genetic diversity.
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Received: 15 November 2017
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Fund:Supported by Program of the Natural Science Foundation of Guizhou Province (No. Qian Ke He Basis [2017]1094), the Science and Technology Fund of the Health Department of Guizhou Province (No. gzwjkj2016-1-003), the Special Funds for High-Level Creative Talents Cultivation in Guizhou Province (Qian Ke He (2016)4021), the Guizhou Province Government Founds for Talent Base Construction for Infectious Disease Control and Prevention (No. Qian Ren Ling Fa [2013] 15) (Sub-project: Natural Focus and Insect-borne Infectious Disease Research Team [RCJD1401]) |
Corresponding Authors:
Wei Xiao-yu, Email: weixyuse@foxmail.com
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